Apply: An archaeologist finds a golden figurine. How could she determine if the figurine is solid gold without cutting it?

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

gravitational energy

electrical energy

kinetic energy

ligh energy

one "light year" is the distance that light travels, through vacuum, in one julian year.   that's 365.25 days, of 24 hours each.